Apparatus and method for matching antenna of mobile communication terminal

An apparatus for matching an antenna of a mobile communication terminal comprising:

• an antenna;
• a switch connected with the antenna and receiving a first or second control signal;
• a first matching unit connected between the switch and an RF signal generating unit of the mobile communication terminal and matching impedance between the antenna and the RF signal generating unit when the antenna and the display unit of the mobile communication terminal become adjacent;
• a second matching unit connected between the switch and the RF signal generating unit and matching impedance between the antenna and the RF signal generating unit when the antenna and the display unit become apart;
• a sensing unit for generating a first match signal when the antenna and the display unit become adjacent and generating a second match signal when the antenna and the display unit become apart;
• and
• a controller for generating a first control signal for connecting the first matching unit and the antenna based on the first match signal or generating a second control signal for connecting the second matching unit and the antenna based on the second match signal.

An apparatus for matching an antenna of a mobile communication terminal comprising:

• an antenna;
• an RF switch electrically connected with an RF signal generating unit of the mobile communication terminal and receiving first or second control signal;
• a first matching unit connected between the RF switch and the antenna and matching impedance between the antenna and the RF signal generating unit when the antenna and the display unit of the mobile communication terminal become adjacent;
• a second matching unit connected between the RF switch and the antenna, and matching impedance between the antenna and the RF signal generator when the antenna and the display unit become apart;
• a sensing unit for generating a first match signal when the antenna and the display unit become adjacent, and generating a second match signal when the antenna and the display unit become apart;
• and
• a controller for generating a first control signal for connecting the first matching unit and the RF signal generating unit based on the first match signal, or generating a second control signal for connecting the second matching unit and the RF signal generating unit based on the second match signal.

An apparatus for matching an antenna of a mobile communication terminal comprising:

• an antenna;
• a first switch connected with the antenna and receiving a first or second control signal;
• a first matching unit connected with the first switch and matching impedance between the antenna and an RF signal generating unit of the mobile communication terminal when the antenna and the display unit of the mobile communication terminal become adjacent;
• a second matching unit connected with the first switch and matching impedance between the antenna and the RF signal generating unit when the antenna and the display unit become apart;
• a second switch connected between the first matching unit and the RF signal generating unit, connected between the second matching unit and the RF signal generating unit, and receiving a third or fourth control signal;
• a sensing unit for generating a first match signal when the antenna and the display unit become adjacent and generating a second match signal when the antenna and the display unit become apart;
• and
• a controller for generating a first control signal for connecting the antenna and the first matching unit and a third control signal for connecting the first matching unit and the RF signal generating unit based on the first match signal, or generating a second control signal for connecting the antenna and the second matching unit and a fourth control signal for connecting the second matching unit and the RF signal generating unit based on the second match signal.

An apparatus for matching an antenna of a mobile communication terminal comprising:

• an antenna;
• a first matching unit connected with the antenna, an matching impedance between the antenna and an RF signal generating unit of the mobile communication terminal when the antenna and a display unit of the mobile communication terminal become adjacent;
• a second matching unit connected in series between the first matching unit and the RF signal generating unit, and matching impedance between the antenna and the RF signal generating unit when the antenna and the display unit become adjacent;
• a switch connected in parallel with the first matching unit and receiving a first or second control signal;
• a sensing unit for generating a first match signal when the antenna and the display unit become adjacent, and generating a second match signal when the antenna and the display unit become apart;
• and
• a controller for generating a first control signal for outputting an RF signal outputted from the RF signal generating unit to the antenna through the first and second matching units based on the first match signal, or generating a second control signal for outputting the RF signal outputted from the RF signal generating unit to the antenna through the second matching unit based on the second match signal.